High-pressure grease and oil dispenser



Sept. 4, 1923.

J. B. HAYDEN ET AL HIGH PRESSURE GREASE AND OIL DISPENSER Filed Oct. 5. 1922 2 Sheets-Sheet l I] vwc 141 014 m 5 0 6 FROM i y a 0 5 7 .v f

Sept. 4, 1923.

J. B. HAYDEN ET AL HIGH PRESSURE GREASE AND OIL'DISPENSER.

Filed Oct. 5. 1922 2 Sheets-Sheet 2 -J' 5. HA mw J MbRR/E f7- @508 65' M w W Patented Sept. 3, W23.

i era-res earner entice.

J'QSEEE EEEZ'EIETT HAYDEN, JOHN MORRIS, AND HARRY CLINTON GEORGE, OF SOUTH GEEENSBURG, PENNSYLVANIA.

' HIGH-PRESSURE GREASE AND 'OIL DISPENSER.

Application filed October 5, 1922. Serial No. 592,562.

T Mi "lo/m 2'13 may concern:

Be it known that we, Jossrnr B. HAYDEN, Jon): Mounts, and Hanna CLINTON GEORGE, citizens of the United States, residing at South Grecnshurg', in the county of West- 'inoreland and State of Pinnsylvania, have invented certain new and useful 1m rovements in High-Pressure Grease and Oil Dis-- pensers; and We do declare the following to he a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.v

Gui invention relates to improvements in dispensing devices designed primarily for use at garages, service stations and the like, in supplying grease or heavy oils to automobile parts, such as the spring bolts, steering knuckle pins, hall joints, and all other parts Where grease and oil must be a, plied under a high pressure. It is to be under stood however that the invention is not re stricted to this use.

in carrying out our invention, We employ a container for the grease or the like and make use oi a plunger pump for discharging predetermined quantities of the com tents, one object being to provide a novel arrangemen of parts whereby the contents of the receptacle are forced by compressed. air into the pump when the plunger of the latter is retracted. thereby insuring positive filling of the pump barrel without the necessity of moving the plunger lo such an extent to create a vacuum within said barrel. The pump barrel or cylinder is located within l'he lower end of the rc c 'it-acle and the plunger extends into this barrel or cylinder from the exterior of said receptacle, a further object being to provide a stalling box through which the plunger passes as it enters the pump cylinder or barrel. together with novel means whereby said stuiling box may be tightened from the exterior of the receptacle.

' A still further object is to provide arrangrement in which the stuiling box tightening means constitutes an e'tl'cctive guide for the pump plunger.

Yet another object is to pmvide a dispens' ing device which is le :1 id inexpensive, yet is highly el'iicicnt and. in every way dosirablfi,

gated tank which is prcierabl provided with an arched bottom 2 having a central opening 3. An upright pump cylinder or barrel 4 passes downwardly through the opening 3 and is provided with an external enlargement 5 resting on the bottom .2, a- 'nut 6 being threaded on the lower end of the barrel, 4: to rigidly clamp the same .in place. The numerals 7designa-te a plurality of inlets for the barrel 4, preferably formed through the enlargement 5 thereof, while the numeral 8 refers to a cbarge'conduit from the lower end of said barrel which preferably includes a special grease hose sulii- .ciently substantial to withstand the pressure and provided with any suitable couplings, preferably soldered. This hose is employed to carry the grease or oil to any desired machine part. Attention is here directed to the fact that the bore of the hose is of comparatively small diameter so that the passage of the lubricant therethrough will be. resisted. llcnce, a quantity of the lubricant \villremain in the hose at all times and due to the fact that the plunger is lim 'ited to a very short stroke, it will be seen that on the down-stroke it will fail to cornplctcly scavenge the lubricant from the hose.

(onsequentlv on the lip-stroke of the plumger a vacuum will be produced and this is utilized to suck the lubricant from the receptacle into the pump cylinder. In this connection it might be pointed/out that the combined area of the several intake ports of the cylinder is considerably greater than the area of the discharge of the cylinder. Therefore, the introduction of the lubricant into the cylinder will be facilitated when. acted on by the vacuum.

The upper end of the barrel 4 is provided with a eounterbore 10 receiving a packing ring 11 against whose upper edge a sleeve 12 bears, thereby "forming a stuffing box for the pump plunger which is in the form of a vertical rod 13. This rod extends from a point above the tank 1 through the upper end of the tank and through the stufling box into the pump cylinder or barrel t and in order that the contents of the tank shall readily ass into the barrel 4 when the plunger 13 is raised, we provide a valve 1 L in the upper end of the tank 1 whereby compressed air may be forced into the latter, said valve be ing preferably in the form of an ordinary tire valve carried by the filling plug 15 of the tank. The numeral 16 designates an appropriate pressure gauge. \Vhen a sufficient quantity of air is compressed into the tank 1 above its contents, it will be seen that these contents will be rapidly moved through the inlets 7 into the pump barrel 4 as soon as the plunger 13 is raised sufficiently to uncover said inlets. Then, upon forcing downwardly upon the plunger, the lubricant or the like entrapped within the barrel 4-. is extruded through the pipe 8 and hose 9. The device is much more rapid and effective in operation by providing for forcing the contents of the tank into the pump barrel, by compressed air, than it would be if it were necessary to raise the plunger 13 suliiciently' to; create a vacuum for the purpose of drawing the contents of the tank into the pump barrel. If such an arrangement were used, not only would an excessive amount of movement benecessary on the part of the plunger 13, but a greater amount of energy would be necessary to raise this plunger. The upper end of the tank '1 is provided with a stufiing box 17 through which a vertical tube 18 passes, said tube having rigidly fixed internal guide bushings 19 and 20 for the plunger 13. The lowermost of these bushings rests upon the sleeve 12, and it will thus be seen that by moving the tubular guide 18 downwardly, the efficiency of the stufiing box 10-11 12 will be increased. In order that the tube 18 may be moved in this manner, it preferably has a threaded connection 21 with the upper end of the barrel 4. Thus, the stufiing box through which the plunger passes may readily be adjusted from the exterior of the tank 1 and attention is additionally directed to the fact that the tube 18 not only serves this function, but constitutes an effective guide for the plunger 13.

Opposite sides of the tube 18, above the tank 1 are provided with vertical slots 22 registering with the relatively short slot 23 in the plunger 13, and an o crating lever 24 passes through the severa slots, being adjustably fulcrumed at 25 to a bracket 26 which extends laterall from the upper portion of said tube. us, by vertically osclliating the lever 24, it will be seen that the user ass plunger 13 will operated to dispense the contents of the tank 1 in the required manner. The fulcrum 25 is made adjustable in order that the leverage exerted by the lever 2 upon the plunger 13, may be varied, according to the character of the material being dispensed.

From the Soregoing, taken in connection with the acompanying drawings, it will be seen that we have provided a very simple and eiiicient dispensing device which is do signed primarily for grease and heavy cils, but it will be understood. that the use or our invention is not restricted to any particular materials or to any one field of use.

As excellent results may be obtained from the details disclosed, they are preferably followed, but within the scope of the invention as claimed, numerous minor changes may he made.

We claim:

- 1. A dispensing device comprising a re ceptacle, a pump cylinder mounted therein, a plunger extending from the exterior of the receptacle and entering said cylinder at a point within said receptacle, a stu'filng' box for said plunger carried by said cylinder, and means extending to the exterior of the receptacle from said stuffing box for tightening the latter. a

2. A dispensing device comprising a receptacle having a stufiing box at its upper end,

a pump cylinder mounted in the lower end of said receptacle and having a stuiiing box in vertical alinernent with said first name-d W9 stuffing box, a vertical tube passing through the uppermost stufiing box, a plunger within the tube passing through the other stufiing box into said pump cylinder, said tube being associated with said last named stufiing box for tightening the latter from the exterior of the receptacle.

3. A dispensing device comprising; a receptacle having a stuifing box at its upper end, a pump cylinder mounted in the lower end of said receptacle and having a studing box including a sliding sleeve for tightening the stuffing, a vertical tube passing through the first named stufl'ing box, and a plunger with-in the tube passing through the other stufiing box and its sleeve, said tube being threaded upon said pump cylinder and having an internal shoulder bearing against. said sleeve, whereby further threading of the tube upon the pump cylinder will tighten the lower stufiing lcox around the plunger.

4. A structure as specified in claim 3, said plunger and tube extending vertically from the receptacle and having registering slots, a bracket extending from said tube adjacent said slots, and a plunger-operating lever fulcrumed to said bracket and extending throu h saidtiots.

5. n a lubricant dispensing device, a con tainer, a tnheextending through and be- 130 your} the top thereof, said tube having longibracket mounted on said tube, said lever havtudinal diametrically opposite slots formed ingpivgtal connection therewith.

therein, a piston slidable'in said tube, said In testimony whereof we have hereunto W piston having a slot formed therein and affixed our signatures.

6 alined with the first named slots, an oper- JOSEPH BENNETT HAYDEN.

ating lever extending through said slots and JOHN MORRIS. being limitaneously movable therein, and a HARRY CLINTON GEORGE.- 

